Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
For a brake system using a 0.81-inch-wide rotor, this red Wilwood AERO4 Dust Seal provides 4 pistons with 1.12-inch bores. The caliper attaches on 7.09-inch radial centers. Founded in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering manufactures disc brake components for motorsport, street-performance and specialized uses. Its range covers calipers, rotors, master cylinders, valves, fittings and brake lines.
Technical Details
- Manufacturer part number: 120-14441-RD
- Component: Wilwood AERO4 Dust Seal; one caliper
- Rotor width: 0.81-inch nominal; 0.75–0.81-inch permitted range
- Rotor diameter range: 12.19–15.00 inches
- Mounting: universal side configuration; Radial; 7.09-inch centers; 0.45-inch mounting holes
- Mount height: 2.09 inches
- Piston arrangement: 4 pistons; 1.12-inch bores; stainless steel
- Hydraulic piston area: 1.98 square inches, as specified by Wilwood
- Pad shape: Wilwood type 6617; compound selected separately
- Body and finish: Forged aluminum; Red Powder Coat
- Dust boots: Yes
- Fluid inlet: 1/8-27 NPT
Fitment & Compatibility
Check pad depth against the rotor’s usable friction annulus. Rotor-hat clearance, mounting offset and the wheel’s inner profile must also be checked with the caliper drawing.
This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.
AERO4-DS calipers use four stainless pistons with external dust wipers and a 7.09-inch radial mounting pattern. Internal fluid transfer avoids an external crossover tube, leaving rotor centering and wheel clearance to the installation design.
PMB Performance’s team has over 20 years of experience with brake components and fitment. We can help review this caliper against the dimensions and hydraulic requirements of your brake system.
